Liverpool is set to host the 8th Global Forum on Nicotine (GFN21) in June, an annual event that was forced online during 2020 by the Covid pandemic. [...] The GFN21 organisers say it, “is the only international conference to focus on the role of safer nicotine products that help people switch from smoking. [...] “The rapid development and use of safer nicotine products raises a number of challenging scientific questions about their safety, who uses them and why, and the impact on smoking. These products also raise challenges for governments who seek to understand what kind of policy and regulation is appropriate. [...]